EP1968267A1 - Media-gateway und verfahren zum melden eines abschlusstatistikparameterwerts - Google Patents

Media-gateway und verfahren zum melden eines abschlusstatistikparameterwerts Download PDF

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Publication number
EP1968267A1
EP1968267A1 EP06828413A EP06828413A EP1968267A1 EP 1968267 A1 EP1968267 A1 EP 1968267A1 EP 06828413 A EP06828413 A EP 06828413A EP 06828413 A EP06828413 A EP 06828413A EP 1968267 A1 EP1968267 A1 EP 1968267A1
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European Patent Office
Prior art keywords
media gateway
parameter
event
statistic
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06828413A
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English (en)
French (fr)
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EP1968267A4 (de
Inventor
Yangbo Lin
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP1968267A1 publication Critical patent/EP1968267A1/de
Publication of EP1968267A4 publication Critical patent/EP1968267A4/de
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1023—Media gateways
    • H04L65/103—Media gateways in the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003—Managing SLA; Interaction between SLA and QoS

Definitions

  • the invention relates to the field of network and communication technologies, particularly to information exchange between a media gateway and a media gateway controller, and more particularly to a media gateway and a method for reporting a statistic parameter value of a termination by a media gateway.
  • NTN Next Generation Network
  • 3G 3rd Generation
  • the NGN is defined preliminarily as a packet-based network, which can provide various services, including telecommunication services, and can utilize transfer techniques that support different bandwidths and are provided with Quality of Service (QoS) guarantee.
  • QoS Quality of Service
  • the developing direction and scope of the NGN is defined.
  • the NGN mostly adopts two key components for networking: a Media Gateway Controller (MGC) and a Media Gateway (MG).
  • MGC Media Gateway Controller
  • MG Media Gateway
  • the MGC is responsible for the function of call control, and the MG for the function of service bearer, thereby realizing separation of the call control plane and the service bearer plane.
  • the above two can evolve separately, so that it is possible to make full use of network resources, simplify equipment upgrade and service expansion, and lower the cost of development and maintenance greatly.
  • the media gateway control protocol is the main protocol for communication between an MGC and an MG.
  • the widely-used protocols include the Gateway Control Protocol (H.248/MeGaCo) and the Media Gateway Control Protocol (MGCP), and the communication protocol among MGs is the RealTime Transfer Protocol (RTP), as shown in Figure 1 .
  • H.248/MeGaCo Gateway Control Protocol
  • MGCP Media Gateway Control Protocol
  • RTP RealTime Transfer Protocol
  • the H.248/MeGaCo is developed on the basis of the MGCP. Under the H.248 for example, an MG bears services by means of the resources on the MG. Those resources can be abstractly expressed as terminations, including physical terminations and ephemeral terminations.
  • the physical termination is a physical entity of semi-permanent existence, such as a Time Division Multiplexing (TDM) channel.
  • the ephemeral termination is a public resource that is obtained upon request and released after having been used, such as an RTP stream.
  • the combination of terminations is abstractly expressed as a context. The relationship between terminations is usually expressed as a topology. A termination that has not been associated with other terminations is included by a special context called Null context.
  • connection of a call lie actually in operations of terminations and contexts, and the operations are performed by command requests and responses between the MGC and the MG.
  • Command parameters also called descriptors, are classified into property, signal, event and statistic.
  • property represents the specification of resource requirements, usually sent to the MG by the MGC or set by the MG itself, such as a maximum or minimum value set for a jitter buffer; signal is used by the MGC to instruct the MG to operate the resources, such as play a dial tone, a ring back tone or a busy tone to a user; event is used by the MGC to instruct the MG to monitor status, such as monitor off-hook, hang-up, dialing and flash-hook performed by a user; and statistic represents the status of resource usage.
  • the statistic parameters are usually calculated by the MG, and some of them can be enabled or disabled (i.e. activated or deactivated) selectively by the MGC. Certain parameters with a service correlation there-between are aggregated logically into a package.
  • the MGC acquires a current value of a statistic parameter (such as the number of packages sent, the number of packages received and the package loss rate) at the MG.
  • a statistic parameter such as the number of packages sent, the number of packages received and the package loss rate
  • the MGC sends to the MG a subtract request command aiming at a certain termination, and the MG sends to the MGC a subtract response command, which carries by default the current values of the statistic parameters enabled (i.e. activated) at the termination.
  • the MGC sends to the MG an AuditValue request command aiming at a certain termination, which carries the statistic parameters to be audited, and the MG sends to the MGC an AuditValue response command, which carries the current values of corresponding statistic parameters at the termination.
  • a statistic parameter value of a termination can be obtained only when the termination ends up with participation of a certain call and exits from the context. Therefore, a real-time change of a statistic parameter value of a termination at the MG can not be reported in a timely way.
  • the MGC can acquire the statistic parameter value at any frequency, but relying upon the control of the MGC. Therefore, the performance of the MGC may be affected, especially when the audit is performed frequently. Another reason lies in that, a statistic parameter value at the MG may change randomly, for example, being beyond a certain extremum, and the change can not be foreseen by the MGC. Therefore, the MGC still can not obtain the values of certain statistic parameters of a termination at the MG in a timely way.
  • the invention is to provide a media gateway and a method for reporting a statistic parameter value of a termination by a media gateway, which enables the media gateway controller to obtain a statistic parameter value of a termination in real-time within the framework of the media gateway control protocol with a lower cost in performance.
  • An embodiment of the invention provides a method for reporting a statistic parameter value of a termination by a media gateway, including:
  • the event is sent to the media gateway by the media gateway controller, or the event is provisioned at the media gateway.
  • Another embodiment of the invention provides a media gateway, including:
  • the embodiments of the invention utilize an event mechanism of the media gateway control protocol to extend an event and incorporate an identifier of a statistic parameter in the parameters of the event.
  • an event mechanism of the media gateway control protocol to extend an event and incorporate an identifier of a statistic parameter in the parameters of the event.
  • a current value of the corresponding statistic parameter is reported according to the identifier of the statistic parameter in the parameters of the event.
  • Multiple selectable trigger conditions may be set in the parameters of the event, including a reporting duration, a reporting period, the specific statistic being beyond a certain extremum, and any combination thereof.
  • the invention adopts an event mechanism, there is no need for the MGC to send an audit command through an audit method, and the MGC only needs to process a statistic parameter value reported by the MG upon receipt. Therefore, the affection on the performance of the MGC is reduced to the least.
  • a real-time change of the QoS status at the MG may be reported in a timely way.
  • a net statistic value in a certain time period may be obtained at the next reporting.
  • the invention is implemented completely within the framework of the media gateway control protocol, the statistic parameters currently existing or possibly extended in the future may be utilized to a great extent and the cost of implementation is relative low.
  • the invention uses an Event/Notify mechanism to enable an MG to report a statistic parameter value actively according to a duration, a period or an extremum as required by the MGC. Because the invention is implemented completely within the framework of the H.248, the statistic parameters currently existing or possibly extended in the future may be reused to a great extent and the implementation is relatively easy.
  • Figure 2 illustrates a method for reporting a termination statistic parameter value by an MG according to a first embodiment of the invention, including the following steps.
  • Step 201 The MGC sends to the MG an event for which a current statistic parameter value is to be reported based on a certain condition.
  • the event includes a duration parameter and an identifier of a statistic parameter to be reported.
  • the duration parameter is a trigger condition for the event, indicating that the event is to be triggered after the time with a span specified by the duration parameter elapses from the receipt of the event.
  • the identifier of the statistic parameter is related to an operation to be performed when the event is triggered.
  • Step 202 A judgment is made as to whether the time with the span elapses, according to the duration parameter of the event. If the time with the span elapses, go to step 204. If the time with the span does not elapse, go to step 203.
  • Step 203 The MG continues detecting the event and counting normally the statistic parameter. Then go to step 202.
  • Step 204 If the time with the span elapses, the MG reports the current value of the statistic parameter, and resets the counting of the statistic parameter. Therefore, a net statistic value in a certain time period may be obtained at the next reporting.
  • Figure 3 illustrates a method for reporting a termination statistic parameter value by an MG according to a second embodiment of the invention, including the following steps.
  • Step 301 The MGC sends to the MG an event for which a current statistic parameter value is to be reported based on a certain condition, the event carrying an identifier of a statistic parameter to be reported.
  • the difference lies in that a different parameter is included in the event.
  • the parameter included in the event in the present embodiment is a period parameter. In other words, an operation of reporting the statistic parameter is triggered each time the time with an interval specified by the period parameter elapses from the receipt of the event.
  • Step 302 A judgment is made as to whether the time with the interval specified by the period parameter elapses. If the time with the interval elapses, go to step 304. If the time with the interval does not elapse, go to step 303.
  • Step 303 and step 304 are similar to step 203 and step 204 respectively.
  • the MGC is enabled to acquire the QoS status at the MG at any frequency as required.
  • Figure 4 illustrates a method for reporting a termination statistic parameter value by an MG according to a third embodiment of the invention, including the following steps.
  • Step 401 An event for which a current statistic parameter value is to be reported based on a certain condition is provisioned at the MG.
  • the event includes both a duration parameter and a period parameter (the duration parameter being greater than the period parameter) and has set therein an identifier of a statistic parameter to be reported.
  • the duration parameter and the period parameter specify a trigger condition for the event.
  • the set statistic parameter is to be reported in the set period within the set duration.
  • Step 402 A judgment is made as to whether the time with a span specified by the duration parameter elapses. If the time with the span elapses, go to step 405. If the time with the span does not elapse, go to step 403.
  • Step 403 A judgment is made as to whether the time with an interval specified by the period parameter elapses. If the time with the interval elapses, go to step 405. If the time with the interval does not elapse, go to step 404.
  • Step 404 The MG detects the event and counts the statistic parameter. Then go to step 402.
  • Step 405 the MG reports the current value of the statistic parameter, and stores the current value for the future counting. Then go to step 402 as well. In other words, the counting of the statistic parameter is unaffected by the reporting of the statistic parameter by the MG in the present embodiment.
  • a reporting duration and a reporting period may be set in the event parameters as required, enabling the MGC to acquire the QoS status periodically within the duration. Namely, the acquiring may be more flexible.
  • Figure 5 illustrates a method for reporting a termination statistic parameter value by an MG according to a fourth embodiment of the invention, including the following steps.
  • Step 501 An event for which a current statistic parameter value is to be reported based on a certain condition is provisioned at the MG.
  • the event has set therein an identifier of a statistic parameter to be reported.
  • the difference lies in the trigger condition for the event.
  • the parameter of the event in the present embodiment includes an extremum parameter. In other words, an operation of reporting the statistic parameter is triggered when the statistic parameter exceeds the extremum.
  • Step 502 The MG detects the event, counts the statistic parameter and monitors a change of the value of the statistic parameter.
  • Step 503 A judgment is made as to whether the value of the statistic parameter reaches the extremum, for example being beyond a maximum or minimum. If the value of the statistic parameter reaches the extremum, go to step 504. If the value of the statistic parameter does not reach the extremum, go to step 502.
  • Step 504 The MG also reports a current value of the statistic parameter, and continues to count normally from the value. Then go to step 502 as well.
  • Figure 6 illustrates a method for reporting a termination statistic parameter value by an MG according to a five embodiment of the invention, including the following steps.
  • Step 601 An event for which a current statistic parameter value is to be reported based on a certain condition is provisioned at the MG.
  • the event includes both a duration parameter and an extremum parameter and has set therein an identifier of a statistic parameter to be reported.
  • the duration parameter and the extremum parameter specify a trigger condition for the event.
  • the set statistic parameter is reported once the statistic parameter reaches the set extremum within the set duration.
  • Step 602 A judgment is made as to whether the time with a span specified by the duration parameter elapses. If the time with the span elapses, the reporting of the statistic parameter is terminated. If the time with the span does not elapse, go to step 603.
  • Step 603 The MG detects the event, counts the statistic parameter. Then go to step 604.
  • Step 604 A judgment is made as to whether the value of the statistic parameter reaches the extremum. If the value of the statistic parameter reaches the extremum, go to step 605. If the value of the statistic parameter does not reach the extremum, go to step 602.
  • Step 605 The MG reports a current value of the statistic parameter, and stores the current value for the future counting.
  • a reporting duration and an extremum may be set in the event parameters as required, enabling the MGC to acquire a real-time change of the set QoS status at the MG within the set duration. Namely, the acquiring may be more flexible.
  • Figure 7 illustrates the structure of an MG 700 according to an embodiment of the invention, at which an event including at least one statistic parameter to be reported as well as an identifier of the statistic parameter is configured.
  • the MG 700 includes:
  • the event is sent to the MG by the MGC, or the event is provisioned at the MG.
  • the trigger condition for the event is determined by the pre-set event parameters, including a duration parameter and/or a period parameter, the MG reports the value of the statistic parameter to the MGC after the time with a span specified by the duration parameter elapses; and/or the MG reports the value of the statistic parameter to the MGC each time the time with an interval specified by the period parameter elapses.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Environmental & Geological Engineering (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
EP06828413A 2005-12-26 2006-12-20 Media-gateway und verfahren zum melden eines abschlusstatistikparameterwerts Withdrawn EP1968267A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2005101119894A CN100440890C (zh) 2005-12-26 2005-12-26 媒体网关上报终端统计参数值的方法
PCT/CN2006/003508 WO2007073679A1 (fr) 2005-12-26 2006-12-20 Passerelle multimedia et procede pour presenter une valeur de parametre statistique de terminal

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EP1968267A1 true EP1968267A1 (de) 2008-09-10
EP1968267A4 EP1968267A4 (de) 2008-12-17

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EP06828413A Withdrawn EP1968267A4 (de) 2005-12-26 2006-12-20 Media-gateway und verfahren zum melden eines abschlusstatistikparameterwerts

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US (1) US20080267202A1 (de)
EP (1) EP1968267A4 (de)
JP (1) JP2009521884A (de)
CN (2) CN100440890C (de)
WO (1) WO2007073679A1 (de)

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CN101212309B (zh) 2006-12-30 2011-06-15 华为技术有限公司 一种控制上报事件的时间戳的方法
CN101212308A (zh) 2006-12-30 2008-07-02 华为技术有限公司 一种统计上报方法
GB2448708B (en) * 2007-04-24 2009-09-30 Motorola Inc A cellular communication system and a method of operation therefor
CN101296094B (zh) * 2007-04-26 2011-02-16 华为技术有限公司 检测承载事件的方法、系统和装置
CN101345722A (zh) * 2007-07-11 2009-01-14 华为技术有限公司 资源预留的实现方法和装置、媒体网关
CN101114938B (zh) * 2007-08-10 2010-06-23 杭州华三通信技术有限公司 分布式系统减少统计所需控制报文量的方法、系统和装置
CN101453445B (zh) * 2007-12-05 2012-01-25 华为技术有限公司 一种终端服务状态改变指示的响应方法及装置
CN101651638B (zh) * 2008-08-14 2013-01-09 华为技术有限公司 一种媒体播放信息上报的方法、装置和系统
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CN102006618A (zh) * 2009-09-03 2011-04-06 普天信息技术研究院有限公司 一种上报公共测量事件的方法
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US20080267202A1 (en) 2008-10-30
JP2009521884A (ja) 2009-06-04
CN101160885B (zh) 2010-08-18
CN1874345A (zh) 2006-12-06
EP1968267A4 (de) 2008-12-17
CN100440890C (zh) 2008-12-03
CN101160885A (zh) 2008-04-09
WO2007073679A1 (fr) 2007-07-05

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